<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        a{
            width: 100px;
            height: 100px;
            padding: 100px;
            margin: 100px;
        }
    </style>
</head>
<body>

    <!-- html中的标签, 分为三类
        1, 块级标签
        2, 行级标签
        3, 行内块
    -->



    <hr>
    <a href="https://www.baidu.com">百度</a>
    <hr>


</body>
</html>
